Mutants of Mycobacterium rhodochrous with Modified Patterns of n-Paraffin Utilization

Jenkins, P. G.; Raboin, D.; Moran, Francis

doi:10.1099/00221287-72-2-395

Cited by 8 publications

(3 citation statements)

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“…B29 and 7E1C, were studied in some detail [59,62]. Several fluorescent pseudomonads that were studied in the sixties and seventies [63][64][65][66] were later shown to contain alkane hydroxylase systems that were virtually identical to the P. putida GPo1 enzyme [67].…”

Section: Diversity Of Membrane-bound Alkane Hydroxylase Systemsmentioning

confidence: 99%

Diversity of Alkane Hydroxylase Systems in the Environment

Beilen

Duetz

et al. 2003

Oil & Gas Science and Technology - Rev. IFP

322

227

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Résumé -Diversité des systèmes alcane hydroxylase dans l'environnement -La première étape dans la dégradation aérobie des alcanes par les bactéries, les levures et les champignons est catalysée par des oxygénases, une classe d'enzymes capables d'introduire des atomes d'oxygène issus de l'oxygène moléculaire dans le substrat alcane. Ces enzymes jouent un rôle important dans la biodégradation du pétrole et dans la biodégradation cométabolique de composés tels que le trichloroéthylène et les éthers-carburants. De plus, ce sont des biocatalyseurs très utiles qui peuvent également servir de modèles pour caractériser une réaction chimique difficile : l'activation régio-et stéréospécifique de la liaison C-H. Plusieurs autres classes d'enzymes catalysent l'oxydation des alcanes. Les souches de levures capables de dégrader les alcanes contiennent plusieurs alcanes hydroxylases appartenant à la superfamille des P450, alors que différentes bactéries contiennent des enzymes similaires au système alcane hydroxylase membranaire de Pseudomonas putida GPo1. Les alcanes à courte chaîne sont probablement oxydés par des alcanes hydroxylases solubles similaires aux méthanes monooxygénases. La présence dans l'environnement de ces oxygénases a été étudiée dans des échantillons de sols et aquifères uniquement pour les alcanes hydroxylases associés aux membranes. Abstract -Diversity of Alkane Hydroxylase Systems in the Environment

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Section: Diversity Of Membrane-bound Alkane Hydroxylase Systemsmentioning

confidence: 99%

Diversity of Alkane Hydroxylase Systems in the Environment

Beilen

Duetz

et al. 2003

Oil & Gas Science and Technology - Rev. IFP

322

227

View full text Add to dashboard Cite

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“…They could be separated into 'short-chain' mutants (Class II) and 'long-chain' mutants (Class III) based on their inability to grow efficiently using «-alkanes of less than C 14 or greater than C 13 respectively. These mutants may be similar to some of the mutants of 'Mycobacterium rhodochrous' described by Jenkins et al (5). They also obtained large numbers of mutants that were not completely incapable of growth on alkanes, but rather had modified patterns of utilization.…”

Section: Discussionmentioning

confidence: 81%

Metabolism of Alkanes by Rhodococcus erythropolis

Lofgren

Haddad

Kendall

1995

Emerging Technologies in Hazardous Waste Management V

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“…Alkane-degraders other than Ps. GPo1 were studied in much less detail (except for the methanotrophs); furthermore, even though hydrocarbon utilization is very common amongst strains belonging to the Corynebacterium-, Mycobacterium-, Nocardia-and Rhodococcus-(CMNR) complex, only a few CMNR strains were studied in some detail [30,190,191]. Additional membrane-bound alkane hydroxylases, acting on C 12…”

mentioning

confidence: 99%

Monooxygenases involved in the n-alkanes metabolism by Rhodococcus sp. BCP1: molecular characterization and expression of alkB gene

Cappelletti

Fedi

Honda

et al. 2010

Journal of Biotechnology

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Discussion 107 Summary 113Chapter 5 -Analysis of the alkB gene expression Summary 157Chapter 6 -Proteomic analysis of n-alkanes growth of Rhodococcus sp. BCP1 Chapter 1 -General Introduction PrefaceThe quality of life on Earth is tightly related with the overall quality of the environment [1]. During the last century it was commonly believed that the abundance of land and resources were unlimited and it was rarely acknowledged that the production, use, and disposal of hazardous substances had environmental and health effects [1][2][3]. Owing to this, human activity has deliberately or inadvertently released into waters and soil a variety of toxic compounds as refrigerants, paints, solvents, herbicides and pesticides that can cause considerable environmental pollution and human health problems as a result of their persistence, toxicity, and transformation into hazardous metabolites [4,5]. Very soon, however, it became clear how the carelessness and negligence in handling the industrial wastes and gas emissions had caused dramatic effect on the nature and on human health [1].Nowadays, the concern about the global warming and the climate changing induced the government regulatory agencies to establish procedures for assessing the environmental impact and health hazards of chemicals and for controlling/limiting their utilization.International efforts have been applied to remedy many contaminated sites all over the world, either as a response to the risk of adverse health or environmental effects caused by contamination or to enable the site to be redeveloped for use [5]. In response to public and government concern and because of the intriguing research problems presented, environmental scientists, biologists and chemists have been giving increased attention to identifying and determining the behavior and fate of organic compounds in natural ecosystems [5].Bioremediation procedures offer an economical and effective possibility to degrade or render innocuous toxic pollutants using natural biological activity [1]. By definition, bioremediation implies the use of living organisms, primarily microorganisms, to degrade the Since contaminant compounds are transformed by living organisms through reactions that take place as a part of their metabolic processes, environmental biotechnology focuses on the development of techniques to optimize environmental parameters to allow these metabolic pathways to proceed faster and, therefore, to improve the bio-degradation [1]. As a result, the removal of the contaminated soil can be necessary to let the biodegradation proceed in controlled sites (such as bioreactors). These ex situ approaches provide optimal conditions out one single step of the entire bio-degradation process. Hydrocarbons in the environmentHydrocarbons are energy-rich organic compounds consisting of carbon and hydrogen atoms and they can be saturated (only single C-H bounds) or unsaturated (one ore more double or triple C-H bounds). Alkanes are saturated hydrocarbons with the general formula C n H 2n+2 ; they can b...

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Mutants of Mycobacterium rhodochrous with Modified Patterns of n-Paraffin Utilization

Cited by 8 publications

References 4 publications

Diversity of Alkane Hydroxylase Systems in the Environment

Diversity of Alkane Hydroxylase Systems in the Environment

Metabolism of Alkanes by Rhodococcus erythropolis

Monooxygenases involved in the n-alkanes metabolism by Rhodococcus sp. BCP1: molecular characterization and expression of alkB gene

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